Unsupported ability to run macOS Sonoma on older Macs is now provided by OpenCore Legacy Patcher 1.0.0.
Warning! Running unsupported version of macOS could lead to data loss and hardware malfunctions.
OpenCore Legacy Patcher project updates bootloader in a way so newer macOS releases could be installed on older Mac hardware.
GitHub: OpenCore-Legacy-Patcher (release notes)
Reference: macOS Sonoma can be installed on 83 unsupported Macs with this tool
Recommendations
Developer:
Consider using OpenCore Legacy Patcher, if needed. Beware of possible issues of running unsupported macOS release.QA engineer:
Consider using OpenCore Legacy Patcher, if needed. Beware of possible issues of running unsupported macOS release.PM/DM:
Business as usual.